Annealing-box.



F. CORDES.

ANNEALING BOX.

APPLIGATION FILED JUNE 13, 1908,

Patented Jan. 26, 1909 2 SHLE'ISwSHLL I I,

INVENTOH WTN ESSES F. CRDBS.

y ANNEALING B0X.` APPLICATION FILED JUNB13,1908.

Patented Jan. 2b', 1909" 2 SHEETS-SHEET z UNITED STATES Pi-MFENT OFFICE.

FRANK CORDES, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR T0 UNITED ENGINEERING& FOUNDRY COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

ANNEALING-BOX.

Specification of Letters Patent.,

Patented Jan. 26, 1909.

Application led .Tune 13, 1908. Serial No. 438,320.

To all whom it may concern.'

Be it known that I, FRANK CORDES, of Pittsburg, Allegheny county,Pennsylvania, have invented a new and useful Im rovement inAnnealing-Boxes, of which tllie 'following is a full, clear, and exactdescription, reference being had to the accom anying -drawin s formlnart of this s eci cation,

g P P showing another modication.

My lnvention has relation to annealing boxes, and is designed to providea novel con,- struction of box adapted to withstand the severe heat towhich it is subjected in service, and which by reason of its peculiarconstruction as hereinafter described, will be more durable in servicethan the boxes heretofore used.

To this end my invention comprises a box which is cast in a single,integral piece, prcferably of steel, and which has its top arranged inthe form of a series of arched domes of 4such form as to beself-supporting.

A further feature of the invention consists in corrugating thoseportions of the sides of the box which are most likely to give away inservice.V

Referring first to the form of box shown in Figs. 1, 2 and 3, thenumeral 2 designates the body of the box, which is cast in a single,integral piece, consisting of side and end portions and having a closed,integral top composed of a series of domes 3. These domes are in thenature of groined arches, being arched in both directions as shown, thusforming a dome which is self su orting against any tendency to collapse.he top may be further strengthened by means of the exterior ribs 4,which act as inverted trusses. These ribs are placed between adjacentarches, and extend transverse] of the box With lateral branches 5, which-)ein the adjacent exterior walls of the arches.

6 designates a separate base or support for the box. i l

In the form of my invention shown in Figs. 4, 5 and 6, the to of the boxconsists of a plurality of simp e transverse arches. The centralportions of the side walls of the box are also corrugated as indicatedat 7. l

This corrugation gives additional strength to the sides oi the box, andis applied to the central portions, which are the portions which aremost likely to give away in service. Fig. 7 shows a plan view ofthe boxin which the sides are corrugated and the top is formed by groinedarches or domes similar to those shown in. Figs. 1 and 2. While I preferto ein loy these corrugated sides in connection wit the domedarrangement of` the top as be `applied with shown, yet this feature mayrox having a difadvantage to any form of ferent design for its top.

While I have shown the boxes, as havin three domes or arches, I do notlimit mysell thereto, as the top of thc box may have only two of thedeines or arches, or more than three.

Iolaim:

1. An annealing box formed as an interal casting, and havin its topportion ormed into a plurality o groined'arches or domes; substantiallyas described.

2. A cast steel annealing box having an integral top formed by aplurality of domes, and having exterior supporting ribs or trussesintermediate the domes; substam tially as described.

3. A cast steel annealing box, having an integral top formed by aplurality oi domes, and exterior strengthenin ribs or trusses eX-tending transversely of tie box and intermediate the domes, said ribs ortrusses'having longitudinal branches joiningr adjacent domi-l".`substantially as describe 4. An' integral cast metal annealing box\having its top formed by a plurality of domes, substantially asdescribed.

5. An integral cast metal annealing box having its top formed by aplurality of domes and having thc central portions of its sides formedwith vertical corrugations, substantially as described.

6. A cast steel annealing box having the central portions of its sidesvertically corrugated and its top formed by a plurality of groincdarches; substantially as i ascribed.

7. I cast metal annealing box having an integral to formed by aplurality of groincd arches or emes and having portions of its sidesformed with ivertical corrugations, sub- In testimony whereof, I havehereunto set stantially as descibed. l b my hand.

8. A cast meta annee ing 0X havin en A integral top formed b a pluralityof arces, BRANK CORDES' 5 and exterlor strengt ening ribs extendingWitnesses:

transversely of the top intermediate adjacent GEO. B. BLEMING,

arches; substantially as described. GEO. H. PARMELEE.

